HydroBASINS lev08 watershed · #1080788490
Bassin de Tassiné
A watershed (drainage basin) is not a body of water — it is the land area where rainfall converges towards a single river that eventually reaches the sea (or an endorheic basin). Boundaries follow ridgelines.
Crosses 4 administrative regions : Bembèrèkè, Gogounou, Kalalé, Ségbana
Sub-basin area
483,7km²
Upstream area
2 305,7km²
Discharge
11,73m³/s
Mean elev.
292m
Administrative coverage
Hydrographic chain
▼ Drains into
▲ Receives from 2 basins
- Bassin de Tassinè1459 km²
- Bassin de Ouéna363 km²
4 dept-equivalent regions (GADM L2)
- 162.6 km²33.8% of basin
- 127.1 km²26.4% of basin
- 110.9 km²23.0% of basin
- 81.1 km²16.8% of basin
1 intersecting protected areas
Trois Rivières
IUCN Not ReportedClassified Forest
473.79 km² overlap
Computed live · GADM 4.1 × HydroBASINS lev08 × WDPA · cached after first hit.
Species present
270 distinct species · 6 518 observations
Source: GBIF Occurrence snapshot 2026-05-01.
Ecological tissue
Sample of 40 species (selected proportionally per kingdom among those with at least one documented interaction here) to keep the graph readable. Hover for details, click to explore the full ecosystem of a species.
ℹ️ The territory contains many more species than displayed and all their documented interactions: the graph is intentionally the structural skeleton (top-N species by composite local score, edges filtered by Serrano 2009 disparity filter α=0.2).
Indicateurs du tissu écologique
Tissu écologique de Bassin de Tassiné : 36 espèces dont 3 patrimoniales (LR IUCN CR/EN/VU) reliées par 44 interactions GloBI sur 4 types (connectance 5.6%, filtre Serrano α=0.2). 4 bulles taxonomiques (cascade genre/famille GloBI, ≥3 espèces).
Comparaison sur la connectance du réseau local complet vs distribution nationale (toutes les communes françaises).
Hydroclimate (BasinATLAS lev08)
Mean T°
27,0°C
Annual rain
1 097mm
Moisture idx (CMI)
-0,44
Runoff
153mm/an
PET
1 946mm
AET
868mm
Mean slope
0,8°
Water table
118cm
Forest
86%
Crops
22%
Urban
0%
Protected
98%
HydroATLAS BasinATLAS v10 (Linke et al. 2019) · HydroBASINS lev08 (Lehner & Grill 2013)